CN109321801A - A kind of nickel based metal ceramic composite coating and its preparation process - Google Patents
A kind of nickel based metal ceramic composite coating and its preparation process Download PDFInfo
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- CN109321801A CN109321801A CN201811342922.5A CN201811342922A CN109321801A CN 109321801 A CN109321801 A CN 109321801A CN 201811342922 A CN201811342922 A CN 201811342922A CN 109321801 A CN109321801 A CN 109321801A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/005—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides comprising a particular metallic binder
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
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Abstract
The invention discloses a kind of nickel based metal ceramic composite coating and its preparation processes.The nickel based metal ceramic composite coating, passes through reasonable disposition TiC, Cr3C2, NiF2, TiO2, C, Cr, Si, Mo, Si3N2, Cr, Re, Na2Ti6O13, Ni, CaF2, each raw material of MnO, V and its proportion, using the interaction between each raw material, collaboration comes into force, and the consistency of nickel based metal ceramic composite coating can be made to greatly improve, to improve its high temperature resistance, especially NiF2、Na2Ti6O13、CaF2, Ni, Si and TiC, Cr3C2And Si3N2It cooperates, significantly improves the corrosion-resistant, wear-resisting of nickel based metal ceramic composite coating and undermine shock resistance.
Description
Technical field
The invention belongs to ceramic-metal composite technical fields, and in particular to a kind of nickel based metal ceramic composite coating and
Its preparation process, in particular to a kind of titanium carbide/chromium carbide enhancing nickel based metal ceramic composite coating and its preparation process.
Background technique
A kind of advanced composite material (ACM) that cermet is researched and developed as metal material and ceramic material has both metal and ceramic material
Certain advantages of material are one of research emphasis of Material Field by the extensive concern of researcher.In recent years, metal is made pottery
The research achievement of porcelain is more and more, and new varieties continuously emerge.
Cermet is a kind of heterogeneous composite wood as composed by metal or alloy and one or more of ceramic phases
Material, the latter one account for about 15%~85vol%, when ceramic content is higher than 50vol%, also referred to as ceramic-metal composite wood
Material.
Cermet type is more, by taking metal-cermic coating as an example, at present metal-cermic coating high temperature resistant, it is corrosion-resistant,
The wear-resisting performance for undermining shock resistance etc. still needs to further improve, and requires harsh special occasions so that it is applied to condition
On.
Summary of the invention
For this purpose, it is to be solved by this invention be existing metal-cermic coating in high temperature resistant, corrosion-resistant, wear-resisting undermine shock resistance
Etc. performance, still need to the defect further improved, and then provide that a kind of high temperature resistant, corrosion-resistant, wear-resisting to undermine shock resistance good
Nickel based metal ceramic composite coating and its preparation process.
In order to solve the above technical problems, The technical solution adopted by the invention is as follows:
Nickel based metal ceramic composite coating provided by the present invention, the raw material including following parts by weight: 5-7 parts of TiC,
Cr3C210-13 parts, NiF21-2 parts, TiO22-4 parts, 2-3 parts of C, 0.5-1.5 parts of Cr, 3-5 parts of Si, 1-2 parts of Mo,
Si3N23-4 parts, 0.1-0.5 parts of Cr, 0.2-0.3 parts of Re, Na2Ti6O130.6-0.8 parts, 0.2-0.3 parts of Ni, CaF2
0.6-0.7 parts, 1-2 parts of MnO, 0.5-0.7 parts of V.
Further, the raw material including following parts by weight: 6 parts of TiC, Cr3C212 parts, NiF21.5 parts, TiO23 parts, C
2.5 parts, 1 part of Cr, 4 parts of Si, 1.5 parts of Mo, Si3N23.5 parts, 0.2-0.3 parts of Cr, 0.25 part of Re, Na2Ti6O13 0.7
Part, 0.25 part of Ni, CaF20.65 part, 1.5 parts of MnO, 0.6 part of V.
Further, the raw material including following parts by weight: 5.5 parts of TiC, Cr3C212.5 parts, NiF21.2 parts, TiO2
3.5 parts, 2.2 parts of C, 1.1 parts of Cr, 3.5 parts of Si, 1.7 parts of Mo, Si3N23.1 parts, 0.25 part of Cr, 0.22 part of Re,
Na2Ti6O130.73 part, 0.21 part of Ni, CaF20.66 part, 1.2 parts of MnO, 0.66 part of V.
Further, the raw material including following parts by weight: 6.5 parts of TiC, Cr3C210.5 parts, NiF21.7 parts, TiO2
2.8 parts, 2.6 parts of C, 0.6 part of Cr, 4.5 parts of Si, 1.2 parts of Mo, Si3N23.7 parts, 0.20 part of Cr, 0.28 part of Re,
Na2Ti6O130.64 part, 0.29 part of Ni, CaF20.62 part, 1.8 parts of MnO, 0.56 part of V.
It further, further include the CeO of 0.8-1 parts by weight2。
It further, further include the B of 1-1.5 parts by weight.
In addition, including the following steps: the present invention also provides the preparation process of above-mentioned nickel based metal ceramic composite coating
(1) above-mentioned each raw material is ground to partial size in proportion is 6-8 μm, obtains abrasive；
(2) ethyl alcohol that volume fraction is 40-60wt% is added into the abrasive, controls the abrasive and ethyl alcohol
Mass ratio is 1:(5-6), and to be stirred under the mixing speed of 1500-2000r/s, slurry is made；
(3) slurry is sprayed at matrix surface, forms precoated shet；
(4) precoated shet is dried to 1-3h at 100-120 DEG C, is sintered, is sintered at 1200-1300 DEG C
Product；
(5) sinter is kept the temperature into 4-5h at 400-500 DEG C, obtains the nickel based metal ceramic composite coating.
Further, the pressure of the spraying is 5-6MPa, time 1-2min.
Further, the time of the sintering is 1-2h.
Further, the precoated shet is first sintered 1-1.5h at 1200-1250 DEG C by described be sintered to, then at 1250-
0.1-0.5h is sintered at 1300 DEG C.
Compared with prior art, the invention has the following beneficial effects:
(1) nickel based metal ceramic composite coating provided by the present invention, passes through reasonable disposition TiC, Cr3C2, NiF2, TiO2,
C, Cr, Si, Mo, Si3N2, Cr, Re, Na2Ti6O13, Ni, CaF2, each raw material of MnO, V and its proportion, using mutual between each raw material
Effect, collaboration come into force, and the consistency of nickel based metal ceramic composite coating can be made to greatly improve, so that its high temperature resistance is improved,
Especially NiF2、Na2Ti6O13、CaF2, Ni, Si and TiC, Cr3C2And Si3N2It cooperates, it is multiple to significantly improve nickel based metal ceramics
It closes the corrosion-resistant, wear-resisting of coating and undermines shock resistance.
(2) preparation process of nickel based metal ceramic composite coating provided by the present invention, in proportion by above-mentioned each raw material first
Being ground to partial size is 6-8 μm, obtains abrasive, and it is uniform to can help to subsequent spraying；Volume point is added into the abrasive again
Number is the ethyl alcohol of 40-60wt%, and the mass ratio for controlling the abrasive and ethyl alcohol is 1:(6-5), and with 1500-2000r/s's
It is stirred under mixing speed, slurry is made, by the strict control to preparation parameter, be conducive to form " disperse and equally distributed pottery
Porcelain particle surface by continuous film form metal phase wrap up " special construction, thus improve its high temperature resistance, it is corrosion-resistant,
It is wear-resisting to undermine shock resistance；Slurry is finally sprayed at matrix surface, forms precoated shet, and dry under special parameter control
And roasting, the nickel based metal ceramic composite coating of compact structure.
(3) preparation process of nickel based metal ceramic composite coating provided by the present invention, by optimization spraying pressure and
Time further helps to the coating to form even compact；By using specific sintering, Ni-based gold can be further improved
Belong to the corrosion-resistant, wear-resisting of ceramic composite coating and undermines shock resistance.
Specific embodiment
Technical solution of the present invention is clearly and completely described below, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
Embodiment 1
Present embodiments provide a kind of nickel based metal ceramic composite coating and its preparation process.The composite coating is by 6g's
The Cr of TiC, 12g3C2, the NiF of 1.5g2, the TiO of 3g2, the Si of the Mo of the Si of the Cr of the C of 2.5g, 1g, 4g, 1.5g, 3.5g3N2,
The Na of the Re of the Cr of 0.25g, 0.25g, 0.7g2Ti6O13, the CaF of the Ni of 0.25g, 0.65g2, the V group of the MnO of 1.5g, 0.6g
At；
The preparation process of above-mentioned nickel based metal ceramic composite coating, includes the following steps:
(1) above-mentioned each raw material is ground to partial size in proportion is 7 μm, obtains abrasive；
(2) ethyl alcohol that volume fraction is 50wt% is added into the abrasive, controls the matter of the abrasive and ethyl alcohol
Slurry is made than being 1:5.5, and to stir under the mixing speed of 1800r/s in amount；
(3) slurry is sprayed at matrix surface, the pressure of spraying is 5.5MPa, time 1.5min, forms precoating
Layer；
(4) precoated shet is dried to 2h at 110 DEG C, 1.5h is sintered at 1250 DEG C, obtains sinter；
(5) sinter is kept the temperature into 4.5h at 450 DEG C, obtains the nickel based metal ceramic composite coating.
Embodiment 2
Present embodiments provide a kind of nickel based metal ceramic composite coating and its preparation process.The composite coating is by 5g's
The Cr of TiC, 13g3C2, the NiF of 1g2, the TiO of 4g2, the Si of the Mo of the Si of the Cr of the C of 2g, 1.5g, 3g, 2g, 3g3N2, 0.5g's
The Na of the Re of Cr, 0.3g, 0.6g2Ti6O13, the CaF of the Ni of 0.3g, 0.6g2, the V composition of the MnO of 2g, 0.5g；
The preparation process of above-mentioned nickel based metal ceramic composite coating, includes the following steps:
(1) above-mentioned each raw material is ground to partial size in proportion is 6 μm, obtains abrasive；
(2) ethyl alcohol that volume fraction is 60wt% is added into the abrasive, controls the matter of the abrasive and ethyl alcohol
Slurry is made than being 1:5, and to stir under the mixing speed of 2000r/s in amount；
(3) slurry is sprayed at matrix surface, the pressure of spraying is 5MPa, time 2min, forms precoated shet；
(4) precoated shet is dried to 3h at 100 DEG C, 1h is sintered at 1300 DEG C, obtains sinter；
(5) sinter is kept the temperature into 4h at 500 DEG C, obtains the nickel based metal ceramic composite coating.
Embodiment 3
Present embodiments provide a kind of nickel based metal ceramic composite coating and its preparation process.The composite coating is by 7g's
The Cr of TiC, 10g3C2, the NiF of 2g2, the TiO of 2g2, the Si of the Mo of the Si of the Cr of the C of 3g, 0.5g, 5g, 1g, 4g3N2, 0.1g's
The Na of the Re of Cr, 0.2g, 0.8g2Ti6O13, the CaF of the Ni of 0.2g, 0.7g2, the V composition of the MnO of 1g, 0.7g；
The preparation process of above-mentioned nickel based metal ceramic composite coating, includes the following steps:
(1) above-mentioned each raw material is ground to partial size in proportion is 8 μm, obtains abrasive；
(2) ethyl alcohol that volume fraction is 40wt% is added into the abrasive, controls the matter of the abrasive and ethyl alcohol
Slurry is made than being 1:6, and to stir under the mixing speed of 1500r/s in amount；
(3) slurry is sprayed at matrix surface, the pressure of spraying is 6MPa, time 1min, forms precoated shet；
(4) precoated shet is dried to 1h at 120 DEG C, 2h is sintered at 1200 DEG C, obtains sinter；
(5) sinter is kept the temperature into 5h at 400 DEG C, obtains the nickel based metal ceramic composite coating.
Embodiment 4
Present embodiments provide a kind of nickel based metal ceramic composite coating and its preparation process.The composite coating is by 5.5g's
The Cr of TiC, 12.5g3C2, the NiF of 1.2g2, the TiO of 3.5g2, the Mo of the Si of the Cr of the C of 2.2g, 1.1g, 3.5g, 1.7g, 3.1g
Si3N2, the Na of the Re of the Cr of 0.25g, 0.22g, 0.73g2Ti6O13, the CaF of the Ni of 0.21g, 0.66g2, the MnO of 1.2g,
The V of 0.66g is formed；
The preparation process of above-mentioned nickel based metal ceramic composite coating, includes the following steps:
(1) above-mentioned each raw material is ground to partial size in proportion is 7 μm, obtains abrasive；
(2) ethyl alcohol that volume fraction is 50wt% is added into the abrasive, controls the matter of the abrasive and ethyl alcohol
Slurry is made than being 1:5.5, and to stir under the mixing speed of 1800r/s in amount；
(3) slurry is sprayed at matrix surface, the pressure of spraying is 5.5MPa, time 1.5min, forms precoating
Layer；
(4) precoated shet is dried to 2h at 110 DEG C, 1.5h is sintered at 1250 DEG C, obtains sinter；
(5) sinter is kept the temperature into 4.5h at 450 DEG C, obtains the nickel based metal ceramic composite coating.
Embodiment 5
Present embodiments provide a kind of nickel based metal ceramic composite coating and its preparation process.The composite coating is by 6.5g's
The Cr of TiC, 10.5g3C2, the NiF of 1.7g2, the TiO of 2.8g2, the Mo of the Si of the Cr of the C of 2.6g, 0.6g, 4.5g, 1.2g, 3.7g
Si3N2, the Na of the Re of the Cr of 0.2g, 0.28g, 0.64g2Ti6O13, the CaF of the Ni of 0.29g, 0.62g2, the MnO of 1.8g,
The V of 0.56g is formed；
The preparation process of above-mentioned nickel based metal ceramic composite coating, includes the following steps:
(1) above-mentioned each raw material is ground to partial size in proportion is 8 μm, obtains abrasive；
(2) ethyl alcohol that volume fraction is 40wt% is added into the abrasive, controls the matter of the abrasive and ethyl alcohol
Slurry is made than being 1:6, and to stir under the mixing speed of 1500r/s in amount；
(3) slurry is sprayed at matrix surface, the pressure of spraying is 6MPa, time 1min, forms precoated shet；
(4) precoated shet is dried to 1h at 120 DEG C, 2h is sintered at 1200 DEG C, obtains sinter；
(5) sinter is kept the temperature into 5h at 400 DEG C, obtains the nickel based metal ceramic composite coating.
Embodiment 6
Present embodiments provide a kind of nickel based metal ceramic composite coating and its preparation process.The composite coating is by 6g's
The Cr of TiC, 12g3C2, the NiF of 1.5g2, the TiO of 3g2, the Si of the Mo of the Si of the Cr of the C of 2.5g, 1g, 4g, 1.5g, 3.5g3N2,
The Na of the Re of the Cr of 0.25g, 0.25g, 0.7g2Ti6O13, the CaF of the Ni of 0.25g, 0.65g2, the V of the MnO of 1.5g, 0.6g,
The CeO of 0.8g2, the B composition of 1.5g；
The preparation process of above-mentioned nickel based metal ceramic composite coating, includes the following steps:
(1) above-mentioned each raw material is ground to partial size in proportion is 7 μm, obtains abrasive；
(2) ethyl alcohol that volume fraction is 50wt% is added into the abrasive, controls the matter of the abrasive and ethyl alcohol
Slurry is made than being 1:5.5, and to stir under the mixing speed of 1800r/s in amount；
(3) slurry is sprayed at matrix surface, the pressure of spraying is 5.5MPa, time 1.5min, forms precoating
Layer；
(4) precoated shet is dried to 2h at 110 DEG C, 1.5h is sintered at 1250 DEG C, obtains sinter；
(5) sinter is kept the temperature into 4.5h at 450 DEG C, obtains the nickel based metal ceramic composite coating.
Embodiment 7
Present embodiments provide a kind of nickel based metal ceramic composite coating and its preparation process.The composite coating is by 6g's
The Cr of TiC, 12g3C2, the NiF of 1.5g2, the TiO of 3g2, the Si of the Mo of the Si of the Cr of the C of 2.5g, 1g, 4g, 1.5g, 3.5g3N2,
The Na of the Re of the Cr of 0.25g, 0.25g, 0.7g2Ti6O13, the CaF of the Ni of 0.25g, 0.65g2, the V of the MnO of 1.5g, 0.6g, 1g
CeO2, the B composition of 1g；
The preparation process of above-mentioned nickel based metal ceramic composite coating, includes the following steps:
(1) above-mentioned each raw material is ground to partial size in proportion is 7 μm, obtains abrasive；
(2) ethyl alcohol that volume fraction is 50wt% is added into the abrasive, controls the matter of the abrasive and ethyl alcohol
Slurry is made than being 1:5.5, and to stir under the mixing speed of 1800r/s in amount；
(3) slurry is sprayed at matrix surface, the pressure of spraying is 5.5MPa, time 1.5min, forms precoating
Layer；
(4) precoated shet is dried to 2h at 110 DEG C, 1.5h is sintered at 1250 DEG C, obtains sinter；
(5) sinter is kept the temperature into 4.5h at 450 DEG C, obtains the nickel based metal ceramic composite coating.
Embodiment 8
Present embodiments provide a kind of nickel based metal ceramic composite coating and its preparation process.The composite coating is by 5g's
The Cr of TiC, 13g3C2, the NiF of 1g2, the TiO of 4g2, the Si of the Mo of the Si of the Cr of the C of 2g, 1.5g, 3g, 2g, 3g3N2, 0.5g's
The Na of the Re of Cr, 0.3g, 0.6g2Ti6O13, the CaF of the Ni of 0.3g, 0.6g2, the V composition of the MnO of 2g, 0.5g；
The preparation process of above-mentioned nickel based metal ceramic composite coating, includes the following steps:
(1) above-mentioned each raw material is ground to partial size in proportion is 6 μm, obtains abrasive；
(2) ethyl alcohol that volume fraction is 60wt% is added into the abrasive, controls the matter of the abrasive and ethyl alcohol
Slurry is made than being 1:5, and to stir under the mixing speed of 2000r/s in amount；
(3) slurry is sprayed at matrix surface, the pressure of spraying is 5MPa, time 2min, forms precoated shet；
(4) precoated shet is dried to 3h at 100 DEG C, 1h is sintered at 1300 DEG C, obtains sinter；
(5) sinter is kept the temperature into 4h at 500 DEG C, obtains the nickel based metal ceramic composite coating.
Comparative example 1
This comparative example provides a kind of nickel based metal ceramic composite coating and its preparation process.The composite coating is by 6g's
The Cr of TiC, 12g3C2, the TiO of 3g2, the Si of the Mo of the Si of the Cr of the C of 2.5g, 1g, 4g, 1.5g, 3.5g3N2, the Cr of 0.25g,
The CaF of the Ni of the Re of 0.25g, 0.25g, 0.65g2, the V composition of the MnO of 1.5g, 0.6g；
The preparation process of above-mentioned nickel based metal ceramic composite coating, includes the following steps:
(1) above-mentioned each raw material is ground to partial size in proportion is 7 μm, obtains abrasive；
(2) ethyl alcohol that volume fraction is 50wt% is added into the abrasive, controls the matter of the abrasive and ethyl alcohol
Slurry is made than being 1:5.5, and to stir under the mixing speed of 1800r/s in amount；
(3) slurry is sprayed at matrix surface, the pressure of spraying is 5.5MPa, time 1.5min, forms precoating
Layer；
(4) it is sintered 1h at by the precoated shet prior to 1250 DEG C, 0.1h is sintered at 1300 DEG C, obtains sinter；
(5) sinter is kept the temperature into 4.5h at 450 DEG C, obtains the nickel based metal ceramic composite coating.
Test example 1
It is 8.2, Nian Ping that nickel based metal ceramic composite coating obtained by above-described embodiment 1-8 and comparative example 1, which is placed in pH,
Homohalin is 27.00 ‰, carries out 30 days seawater corrosion tests in 21 DEG C of average annual water temperature of seawater, observes nickel based metal after 30 days
Ceramic composite coating variation, corresponding observed result are as shown in table 1 below:
Table 1
| Coating appearance | Average coating thickness slip | |
| Embodiment 1 | Without significant change | 0.10% |
| Embodiment 2 | Without significant change | 0.31% |
| Embodiment 3 | Without significant change | 0.26% |
| Embodiment 4 | Without significant change | 0.16% |
| Embodiment 5 | Without significant change | 0.13% |
| Embodiment 6 | Without significant change | 0.08% |
| Embodiment 7 | Without significant change | 0.07% |
| Embodiment 8 | Without significant change | 0.20% |
| Comparative example 1 | There is obvious cracking, partial exfoliation | 2.13% |
Test example 2
The Vickers hardness of nickel based metal ceramic composite coating obtained by above-described embodiment 1-8 and comparative example 1 is tested respectively
HV and impact resistance Ak, it is mutually deserved I test result is as follows shown in table 2:
Table 2
Test example 3
Nickel based metal ceramic composite coating high temperature resistance obtained by above-described embodiment 1-8 and comparative example 1 is tested respectively,
After keeping the temperature 8h at a high temperature of placing it in 1500 DEG C, the surface topography of composite coating is observed, corresponding test result is as follows 3 institute of table
Show:
Table 3
| Coating appearance | |
| Embodiment 1 | Without significant change |
| Embodiment 2 | Without significant change |
| Embodiment 3 | Without significant change |
| Embodiment 4 | Without significant change |
| Embodiment 5 | Without significant change |
| Embodiment 6 | Without significant change |
| Embodiment 7 | Without significant change |
| Embodiment 8 | Without significant change |
| Comparative example 1 | There is obvious cracking, partial exfoliation |
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of nickel based metal ceramic composite coating, the raw material including following parts by weight: 5-7 parts of TiC, Cr3C210-13 parts,
NiF21-2 parts, TiO22-4 parts, 2-3 parts of C, 0.5-1.5 parts of Cr, 3-5 parts of Si, 1-2 parts of Mo, Si3N23-4 parts, Cr
0.1-0.5 parts, 0.2-0.3 parts of Re, Na2Ti6O130.6-0.8 parts, 0.2-0.3 parts of Ni, CaF20.6-0.7 parts, MnO 1-2
Part, 0.5-0.7 parts of V.
2. nickel based metal ceramic composite coating according to claim 1, which is characterized in that the original including following parts by weight
Material: 6 parts of TiC, Cr3C212 parts, NiF21.5 parts, TiO23 parts, 2.5 parts of C, 1 part of Cr, 4 parts of Si, 1.5 parts of Mo, Si3N2
3.5 parts, 0.2-0.3 parts of Cr, 0.25 part of Re, Na2Ti6O130.7 part, 0.25 part of Ni, CaF20.65 part, 1.5 parts of MnO, V
0.6 part.
3. nickel based metal ceramic composite coating according to claim 1 or 2, which is characterized in that including following parts by weight
Raw material: 5.5 parts of TiC, Cr3C212.5 parts, NiF21.2 parts, TiO23.5 parts, 2.2 parts of C, 1.1 parts of Cr, 3.5 parts of Si, Mo
1.7 parts, Si3N23.1 parts, 0.25 part of Cr, 0.22 part of Re, Na2Ti6O130.73 part, 0.21 part of Ni, CaF20.66 part,
1.2 parts of MnO, 0.66 part of V.
4. nickel based metal ceramic composite coating according to any one of claim 1-3, which is characterized in that including weighing as follows
The raw material of amount part: 6.5 parts of TiC, Cr3C210.5 parts, NiF21.7 parts, TiO22.8 parts, 2.6 parts of C, 0.6 part of Cr, Si
4.5 parts, 1.2 parts of Mo, Si3N23.7 parts, 0.20 part of Cr, 0.28 part of Re, Na2Ti6O130.64 part, 0.29 part of Ni, CaF2
0.62 part, 1.8 parts of MnO, 0.56 part of V.
5. nickel based metal ceramic composite coating described in any one of -4 according to claim 1, which is characterized in that further include 0.8-
The CeO of 1 parts by weight2。
6. nickel based metal ceramic composite coating according to any one of claims 1-5, which is characterized in that further include 1-
The B of 1.5 parts by weight.
7. the preparation process of nickel based metal ceramic composite coating of any of claims 1-6, includes the following steps:
(1) above-mentioned each raw material is ground to partial size in proportion is 6-8 μm, obtains abrasive；
(2) ethyl alcohol that volume fraction is 40-60wt% is added into the abrasive, controls the quality of the abrasive and ethyl alcohol
Than for 1:(5-6), and to stir under the mixing speed of 1500-2000r/s, slurry is made；
(3) slurry is sprayed at matrix surface, forms precoated shet；
(4) precoated shet is dried to 1-3h at 100-120 DEG C, is sintered at 1200-1300 DEG C, obtains sinter；
(5) sinter is kept the temperature into 4-5h at 400-500 DEG C, obtains the nickel based metal ceramic composite coating.
8. preparation process according to claim 7, which is characterized in that the pressure of the spraying is 5-6MPa, time 1-
2min。
9. preparation process according to claim 7 or 8, which is characterized in that the time of the sintering is 1-2h.
10. the preparation process according to any one of claim 7-9, which is characterized in that described be sintered to first will be described pre-
Coating is sintered 1-1.5h at 1200-1250 DEG C, is sintered 0.1-0.5h at 1250-1300 DEG C.
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| CN101838767A (en) * | 2009-03-20 | 2010-09-22 | 宝山钢铁股份有限公司 | Composite metal ceramic powder, furnace roller coated with same and preparation method thereof |
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